3LTG
Crystal structure of the Drosophila Epidermal Growth Factor Receptor ectodomain complexed with a low affinity Spitz mutant
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.4 | 294 | 11% PEG 20,000 0.1M HEPES pH7.4 3% n-propanol, VAPOR DIFFUSION, HANGING DROP, temperature 294K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.29 | 71.31 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 73.75 | α = 90 |
b = 120.15 | β = 90 |
c = 274.7 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | MARMOSAIC 300 mm CCD | 2007-04-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 0.97928 | APS | 21-ID-D |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 3.4 | 50 | 99 | 0.083 | 17 | 7 | 28593 | 28590 | 2 | 2 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
3.4 | 3.57 | 97.2 | 0.496 | 2.1 | 5.7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 3I2T and 3LTF; s-dEGFR ectodomain unliganded and complexed with Spitz | 3.4 | 50 | 28593 | 25706 | 2887 | 82.65 | 0.4077 | 0.40558 | 0.42675 | RANDOM | 59.04 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.88 | -0.59 | -1.29 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 8521 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
PHASER | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |